Evidence map›Paper›PMID 42845225›Full record

ArticleAllergy, asthma & immunology research2026

E2F1-Activated lncRNA FTX Promotes Asthma Progression via Regulating the SRSF1/RBPJ Axis.

Yuting Lai, Guoqing Qiu, Na Li, Yuming Chen, Yan Shen

Abstract read
In one paragraph

Article in Allergy, asthma & immunology research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Yuting LaiDepartment of Respiratory, Longgang Central Hospital, Shenzhen, China.ORCID https://orcid.org/0009-0005-4476-8147
Guoqing QiuDepartment of Respiratory, Longgang Central Hospital, Shenzhen, China.ORCID https://orcid.org/0009-0005-6045-3591
Na LiDepartment of Respiratory, Longgang Central Hospital, Shenzhen, China.ORCID https://orcid.org/0009-0008-2673-667X
Yuming ChenDepartment of Respiratory, Longgang Central Hospital, Shenzhen, China.ORCID https://orcid.org/0009-0007-3355-9387
Yan ShenDepartment of Respiratory, Longgang Central Hospital, Shenzhen, China. yanshen2008@163.com.ORCID https://orcid.org/0009-0008-0228-5456

Funding

Longgang Medical Discipline Construction FundShenzhen Longgang District Science and Technology Innovation Bureau Medical and Health Technology Research Project LGKCYLWS2023014
6 · The paper itself

Abstract

purposeLong non-coding RNA five prime to Xist (FTX) is considered a regulator for asthma. Therefore, we aimed to explore its more roles and molecular mechanisms in asthma process.

methodsSerum samples from controls and asthmatics were collected. Asthma mouse models were induced with ovalbumin (OVA), and cell models were established using airway smooth muscle cells (ASMCs) treated with platelet-derived growth factor BB (PDGF-BB). The inspiratory and expiratory airway resistances of mice were examined by measuring airway hyperresponsiveness. The pathological changes of mice lung tissues were observed by hematoxylin & eosin, periodic acid-Schiff, and Masson staining. Serum immunoglobulin E and inflammatory factor levels were detected using an enzyme-linked immunosorbent assay. The CCK-8, Transwell, and flow cytometry were used to assess cell function. FTX, E2F family transcription factor 1 (E2F1), serine rich/arginine splicing factor 1 (SRSF1), and recombination signal binding protein J (RBPJ) levels measured by quantitative real-time-polymerase chain reaction or Western blotting. The relationships among FTX, E2F1, SRSF1, and RBPJ were evaluated by dual-luciferase report, ChIP, RNA pull-down and RIP assay. The effect of FTX/SRSF1 on RBPJ mRNA stability was analyzed by the actinomycin D treatment assay.

resultsUpregulated FTX was detected in asthmatic patients, asthma mice, and PDGF-BB-induced ASMCs. FTX downregulation repressed PDGF-BB-induced ASMCs viability, migration, and inflammation. E2F1 bound to the FTX promoter region to activate its expression, and E2F1 downregulation could repress PDGF-BB-induced ASMCs function via reducing FTX expression. Also, FTX stabilized RBPJ mRNA by interacting with SRSF1. RBPJ overexpression reversed the downregulation effect of FTX knockdown on PDGF-BB-induced ASMCs viability, migration, and inflammation. Meanwhile, E2F1 downregulation alleviated mouse asthma symptoms by inhibiting the FTX/SRSF1/RBPJ pathway.

conclusionsFTX, transcriptionally activated by E2F1, promoted asthma progression via the the regulation of the SRSF1/RBPJ pathway, thereby providing a possible therapeutic target for asthma treatment that warrants further validation.

Indexed as

airway smooth muscle cellsasthmaLong non-coding RNAmiceovalbumin (OVA)RBPJSRSF1transcription factor

Identifiers

PMID42845225
PMCPMC13655410

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.